Demountable rim



Feb. 2 ,1926.` y 1,571,830

Ik. F. WILLMAN DEMOUNTABLE RIM Filed May '7, 1923 2 Sheets-Sheet 2 f/H//LLMA/v Patented eb. 2, 1926.

UNITED 'STATES PATENT OFFICE.

IRVIN F. WILLMAN, OF MULESHOE, TEXAS.

DEMOUNTABLE RIM.

Application led May 7,

To all 'uihom it may concern.'

Be it known that I, IRviN F.' WII`.LMAN', a citizen of the .UnitedStates, residing a't Muleshoe, in the county of Bailey'andState ofTexas, have invented certain new and usefullmprovements in DemountableRims; and I do declare the following to be a full, clear, and exactdescriptionvof the invention,

`such as will enable others skilled in the art to which it appertainsto'mak'e and use the same. l

My invention'relates to improvements in` demountable rims and moreparticularly to y i 4 means for rigidly securing the rim upon theAnother object 1s to provide a transverse'` wedge and shouldersco-operable therewithfor turning the rim on the wheelain a direction toeither release or lock the rim.

With the foregoing in View, the invention resides in the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by thev accompanying drawings. Figure l is a sideelevationof an automobile wheel, rim and tire showing myinvention.

Figure 2 is a sectional view'in a central plane showing the means forlocking the rim upon the felly.

Figure 3 is a duplicate of Fig. 2 with the exception thatiis-illustrates the rim in a released position, preparatory to removal.

Figure 4 is an outer side view of a portion of the rim and felly,yshowing more'partieularly the means forlocking-the. rim on the Wheeland moving said rim in eitherdireeof the parts dotted in Fig. 4.

tion. Figurev 5.is a disassembled perspective view showing morev clearlythe construction Figure 6 isa transverse sectional View on line 6+6ofFig. 1. 1

Figure 7 is asimilar view on line 7-'7 of Fig.

In .the drawings above briefly described,

l the numeral'l designates. the felly band of an automobile wheel, thisband and the felly of the wheel' being formed with a suitable slot 2 toreceive the usual tire valve 3. At a l It is to facilitate 1923. serialNo. 637,272.

suitable number of circumferentially spaced points, the felly band-1 isprovided with substantially flat lugs' 4 each having a portion5'extending transversely of the wheel and a pairof spacedcircumferentially extending arms 6 and 7 which extend in the samedirection from said transverse portion 5, the arms 6 at the inner sideof the Wheel lbeing"preferably longer than-the arm 7 at the other sidethereof. Preferably, the

.transverse portion 5 is beveled at 8 between the arms 6 and 7, on asubstantially tangential line. Y

At a point spaced circumferentially from oneof the lugs 4, is anadditionallug 9 for a purpose to appear, said lug being .carried by thefelly band 1. If desired, all of the lugs 4 and 9 may be cutfrom'suitable gage metal andl riveted to said elly band, but an integralstructure may beused if desired.

The 'demountable rim is designated by the numeral l0 and may be of thecontinuous straight side or clincher beads. The inner which arereceivable between the arms 6 and 7 'of the lugs '4 when the rim isturned in the proper direction on'the wheel.

roper positioning of the lugs 1l between tlie arms 6 and 7, that thearms 6 extend beyond said arms 7. Thus, when the rim -is applied to thewheel, the

lugs 11 will `strike the arms 6, whereuponturning 'of the rim in theproper direction Awill properly position the lu s 11 between the outerand inner arms. I the bevels 8 are employed and they preferably are, thelugs llare similarly beveled asindicated at 12, whereby the rim may betightly` wedged upon the Wheel. y

The numeral 13 designates an -additional lug carried by the inner sideof the rim 10, in -position for reception between the lu 9 and theadjacentwlug 4, `said lug 13 being spaced from one .of the lugs 11, tosuch an extent that when said lug 13 will dust clear said lug 4 andpermit the rim to moved onto the wheel, all of the lugs 11 will strikethe long arms 6 ofthe lugs 4.

Opposite edges 14 of the lug 1.3 extend obliqiiely across therim 10 andin the present showing said edges converge from the center ofthe' rim toboth edges of the latter.

A flat wedge 15-is insertible between the lug 13 and the adjacent lug 4to ,forcibly `type or any other. desired form, with either turn `the rimupon the Wheel and look the lugs 11 in tight engagement with the lugs 4and if `desired, when this wedge is removed, it may be reinsertedbetween the lug 13 and the lug 9, thereby turning the rim in a directionto release it from the lugs 4. In the preferred form of construction thewedge 15 is provided with a threaded stem 16 on one end and one of theedges of the wedge is parallel with the axis of this stem, this edgebeing adapted to contact with the shoulder formed by one edge of theVadjacent lug 4, while the opposite edgeof the Wedge co-acts with any ofthe shoulders formed by the ed es of the lug 13. After insertion of thewedge it may be driven in place by a hammer if desired, or by threadmg anut 17 onto the stem 16, it will be drawn to a tight locking position.

By employing the details shown and described, a simple and inexpensive,yet an efficient, easily operable and reliable means will be rovided formounting a rim demountab y upon a Wheel. The construction is such thatany rim may be applied to any Wheel of the machine, but the ugs 4 at oneside uf the machine are the reverse of those at the other side thereof,except that the long arms 6 of said lugs are at the inner side of theWheel, on both sides of the machine. It will be seen that the obliqueedges 14 of the lug 13 will permit the wedge 15 to properly act,regardless of the side of the machine at which the rim is used andfurthermore that the wed e may be inserted from either side of the weel, as may be most desirable.Y

As excellent results are obtainable from the details disclosed, they arepreferably followed, but within the scope of the nvention as claimed,numerous minor changes ma be made.

claim:

A demountable rim havingr a fiat lng on its inner side, said lu havingtwo edges extending circumferentiall of the rim, and two angular edgesexten in transversely of therim and disposed in p anes at right anglesto said inner side of the rim, both ends of each of said angular edgesbeing dis posed at a common acute angle with respect to the edges of therim, for co-action with a Wedge.

In testimony whereof I have hereunto affixed my signature.

inviN F. WILLI/IAN.

